Home / 205,828.27-308,244.11-142,470.88

Finding the Fourth Proportional to 205,828.27, 308,244.11 and 142,470.88

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Solution

The fourth proportional to 205,828.27, 308,244.11 and 142,470.88 is: 213,361.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,828.27 : 308,244.11 = 142,470.88 : x
  2. Step 2: Convert to fraction form
    205,828.27/308,244.11 = 142,470.88/x
  3. Step 3: Cross multiply
    205,828.27x = 308,244.11 × 142,470.88
  4. Step 4: Simplify right side
    205,828.27x = 43,915,809,606.52
  5. Step 5: Solve for x
    x = 43,915,809,606.52/205,828.27
  6. Step 6: Final answer
    x = 213,361.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.